Short for, "Walla Walla Bum Fuck," it can refer to any rural area far from the civilization of a major metropolitan area.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy

Who wanna be friends is the definition of WWBF. I came up with it myself.